The "home trainer" is something of a novelty. With it a man who is in training can do his work at all times, being made principally for use when the streets are in bad condition. The rider places his wheel on the machine and mounting, rides for hours without gaining so much as the minutest part of an inch. Both front and rear wheels fit into a couple of rollers which turn as the wheels turn. It is said that a person can make a mile in much faster time on a home trainer than he can on terra firma. The machine for the Diamonds is being constructed by Messrs. Cummer's and Greenleaf.